日光温室光环境模拟系统设计与实现

Design and Implementation of Light Environment Simulation System of Solar Greenhouses

【目的】日光温室光环境是评价温室结构优劣的重要指标之一,分析和评价不同温室结构的光环境,进行日光温室光环境厝拟系统的设计与开发。【方法】开发Windows平台下的日光温室三维光环境模拟系统。通过用户交互设计的方式设计或重建温室的三维结构,结合温室外部光环境与温室内部结构的光学属性参数,从直射光、散射光和多次反射散射光分布角度对温室光环境进行动态模拟。【结果】通过简单调整结构参数即可设计出不同温室三维结构并用于室内光分布计算,且所模拟的温室光环境与实际光环境基本一致。【结论】系统具有参数意义明确、交互操作便捷等特点,为日光温室光环境分析与温室结构优化等研究提供了实用的软件工具。

【Objective】Light environment inside the solar greenhouse is an important index for evaluating the performance of greenhouse structures. This study aims to analyze and evaluate light environment of different greenhouse structures.【Method】A three- dimensional light environment simulation system for greenhouses was developed on Windows platform. The system supported modeling schemes based on user interaction or measured data. Combined with the optical parameters of components inside the greenhouse and external environment conditions of the greenhouse,the light environment of greenhouse can be dynamically simulated from direct light,diffuse light,multi- reflected and scattered light respectively. 【Result】The experimental results demonstrated that different three dimensional greenhouses could be designed by simply adjusting structure parameters and used for light computation,and simulated light environment was in accordance with the actual light environment.【Conclusion】This system with well- defined parameters and convenient interactive operations could be used for the light environment analysis and structure optimization of solar greenhouses.